PERFORMED CMA FULL SERVICE ON 3 GAS PACKAGE SYSTEMS ON ROOFTOP. GAS PACK #1 IS PERFORMIG PROPERLY AT THIS TIME. TECH CLEANED EVAPORATOR AND CONDENSER COILS ALSO OUTSIDE CABNET OF SYSTEM. FLUSHED DRAIN LINE AND REPLACED 4-20x20x2 FILTERS. PERFORMED LEAK SEARCH ON COILS, DIDNOT FIND ANY LEAKS. TECH CHECKED FAN, COMPRESSOR AND BLOWOR MOTOR AMPERAGE, ALL AMPERAGE CHECKS WERE INSIDE CORRECT SPECIFICATIONS. UPON ARRIVAL TO SERVICE GAS PACK #2 WAS NOT OPERATING. TECH DIAGNOSED SYSTEM AND FOUND SYSTEM VOID OF R-410A REFRIGERANT, THERE IS AN ESTIMATE PROVIDED FOR R-401A REFRIGERANT PER POUND. TECH LEAK SEARCHED EVAPORATOR COIL AND CONDENSER COIL AND FOUND NO PRESENT LEAKS, RECOMMEND A LEVEL 3 LEAK SEARCH ON COILS TO FURTHER DIAGNOSE SYSTEM AND FIND POSSIBLE LEAKS. THERE IS AN ESTIMATE PROVIDED FOR A LEVEL 3 LEAK SEARCH. TECH CHECKED AMPS ON 60 AMP FUSES INSIDE DISCONNECT BREAKER BOX AND FOUND 1 FUSE HAS FAILED, RECOMMEND REPLACEMENT OF 1-60 AMP FUSE, THERE IS AN ESTIMATE PROVIDED FOR REPLACEME